Home / 3,820.40-5,730.60-3,164.30

Finding the Fourth Proportional to 3,820.40, 5,730.60 and 3,164.30

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Solution

The fourth proportional to 3,820.40, 5,730.60 and 3,164.30 is: 4,746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.40 : 5,730.60 = 3,164.30 : x
  2. Step 2: Convert to fraction form
    3,820.40/5,730.60 = 3,164.30/x
  3. Step 3: Cross multiply
    3,820.40x = 5,730.60 × 3,164.30
  4. Step 4: Simplify right side
    3,820.40x = 18,133,337.58
  5. Step 5: Solve for x
    x = 18,133,337.58/3,820.40
  6. Step 6: Final answer
    x = 4,746.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.